Getting hot on the highway with the AC on.

BTW, I have a big-cammed ([email protected]) 451 low-deck, three-row 26" aluminum radiator, 180 Milodon high-flow stat, Flowkooler pump, non-a/c pulleys, Contour electric fans with Autocool PWM controller, 4-speed, 3.91 rear (3050 rpm @ 60 mph). Oh, and no air conditioning.

It will idle at 182 degrees in any ambient between 30's and 90's. But it tends to very slowly heat up on the highway at 65+ (3200) in 90 degree weather, after 15 minutes or so it levels off at 198. The temp gradually comes back down when returning to slow streets or idling, but it takes several minutes to do so.

Anyway, as has been repeatedly said, 200 is not overheating. It bugs me too but I rarely drive the non-a/c beast in 90+ temps anyway! (I'm also missing the seal between the hood and core, will try that eventually. Although with a 6-pack hood, that scoop may be causing issues with airflow too.